the use of chemical weapons is and would be totally unacceptable. and if you make the tragic mistake of using these weapons, there will be consequences and you will be held accountable. >> the assad regime won't admit it has chemical weapons, but says if it did, it would not use them. >>> in egypt today, opponents of president mohamed morsi plan a huge protest march and a general strike. crowds have started to gather in cairo's tahrir square. holly williams is in cairo. holly, good morning to you. what's the latest there now? >> good morning, terrell. well, president morsi's opponents are calling this a final warning to the president and his islamist allies. they're expecting tens of thousands of people today, perhaps more. they're angry about two things. first of all, president morsi's power grab of 12 days ago in which he gave himself expanded new authority. secondly, a draft constitution, which we put to a referendum, a popular vote in two weeks time. critics say it gives too prominent a role to islamic shari'a law but fails to protect some basic